diff options
Diffstat (limited to 'sql/sql_show.cc')
-rw-r--r-- | sql/sql_show.cc | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/sql/sql_show.cc b/sql/sql_show.cc index 33e31913e41..095ad409a94 100644 --- a/sql/sql_show.cc +++ b/sql/sql_show.cc @@ -2810,7 +2810,6 @@ static bool show_status_array(THD *thd, const char *wild, int len; LEX_STRING null_lex_str; SHOW_VAR tmp, *var; - COND *partial_cond= 0; enum_check_fields save_count_cuted_fields= thd->count_cuted_fields; bool res= FALSE; CHARSET_INFO *charset= system_charset_info; @@ -2824,7 +2823,6 @@ static bool show_status_array(THD *thd, const char *wild, if (*prefix) *prefix_end++= '_'; len=name_buffer + sizeof(name_buffer) - prefix_end; - partial_cond= make_cond_for_info_schema(cond, table->pos_in_table_list); for (; variables->name; variables++) { @@ -2862,14 +2860,14 @@ static bool show_status_array(THD *thd, const char *wild, if (show_type == SHOW_ARRAY) { show_status_array(thd, wild, (SHOW_VAR *) var->value, value_type, - status_var, name_buffer, table, ucase_names, partial_cond); + status_var, name_buffer, table, ucase_names, cond); } else { if ((wild_checked || (wild && wild[0] && wild_case_compare(system_charset_info, name_buffer, wild))) && - (!partial_cond || partial_cond->val_int())) + (!cond || cond->val_int())) { char *value=var->value; const char *pos, *end; // We assign a lot of const's @@ -5897,7 +5895,13 @@ int fill_schema_proc(THD *thd, TABLE_LIST *tables, COND *cond) { DBUG_RETURN(1); } - proc_table->file->ha_index_init(0, 1); + + if (proc_table->file->ha_index_init(0, 1)) + { + res= 1; + goto err; + } + if ((res= proc_table->file->ha_index_first(proc_table->record[0]))) { res= (res == HA_ERR_END_OF_FILE) ? 0 : 1; @@ -5923,7 +5927,9 @@ int fill_schema_proc(THD *thd, TABLE_LIST *tables, COND *cond) } err: - proc_table->file->ha_index_end(); + if (proc_table->file->inited) + (void) proc_table->file->ha_index_end(); + close_system_tables(thd, &open_tables_state_backup); DBUG_RETURN(res); } @@ -7122,9 +7128,12 @@ int fill_variables(THD *thd, TABLE_LIST *tables, COND *cond) schema_table_idx == SCH_GLOBAL_VARIABLES) option_type= OPT_GLOBAL; + COND *partial_cond= make_cond_for_info_schema(cond, tables); + mysql_rwlock_rdlock(&LOCK_system_variables_hash); res= show_status_array(thd, wild, enumerate_sys_vars(thd, sorted_vars, option_type), - option_type, NULL, "", tables->table, upper_case_names, cond); + option_type, NULL, "", tables->table, + upper_case_names, partial_cond); mysql_rwlock_unlock(&LOCK_system_variables_hash); DBUG_RETURN(res); } @@ -7161,13 +7170,18 @@ int fill_status(THD *thd, TABLE_LIST *tables, COND *cond) tmp1= &thd->status_var; } + COND *partial_cond= make_cond_for_info_schema(cond, tables); + // Evaluate and cache const subqueries now, before the mutex. + if (partial_cond) + partial_cond->val_int(); + mysql_mutex_lock(&LOCK_status); if (option_type == OPT_GLOBAL) calc_sum_of_all_status(&tmp); res= show_status_array(thd, wild, (SHOW_VAR *)all_status_vars.buffer, option_type, tmp1, "", tables->table, - upper_case_names, cond); + upper_case_names, partial_cond); mysql_mutex_unlock(&LOCK_status); DBUG_RETURN(res); } |